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题名: NO reduction by CH4 in the presence of excess O-2 over Co/sulfated zirconia catalysts
作者: Li, N;  Wang, AQ;  Tang, JW;  Wang, XD;  Liang, DB;  Zhang, T
关键词: NO reduction ;  methane ;  sulfated zirconia ;  tolerance ;  water and SO2
刊名: APPLIED CATALYSIS B-ENVIRONMENTAL
发表日期: 2003-06-30
卷: 43, 期:2, 页:195-201
收录类别: SCI
文章类型: Letter
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Engineering, Environmental ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: Selective catalytic reduction (SCR) of nitric oxide with methane in the presence of excess oxygen has been studied for the first time on a series of non-noble metal (Co, Mn, In, Ni) catalysts supported on sulfated zirconia (SZ). Pure SZ showed only a low activity for the SCR of NO with methane. After loading Co, Mn, In and Ni on SZ, an obvious promoting effect on the catalytic activity was achieved. Especially for the 4 wt.% Co/SZ and the 4 wt.% Mn/SZ, over which the maximum NO conversions above 60% were reached. Moreover, the Co/SZ also exhibited good stability during a long-term test of 60 h. By comparing the activities of ZrO2, SZ, Co/ZrO2 and Co/SZ, it was found that sulfation of the support was essential for the generation of the Co sites that were active for the reduction of NO. The most attractive feature of the Co/SZ catalysts is that they are less sensitive to water and SO2 poisoning than the Co/HZSM-5 catalysts and exhibit higher reversibility after the removal Of SO2(D (C) 2002 Elsevier Science B.V. All rights reserved.
关键词[WOS]: LOADED SULFATED ZIRCONIA ;  NITROGEN-OXIDES ;  SELECTIVE REDUCTION ;  NITRIC-OXIDE ;  WATER-VAPOR ;  EXCHANGED ZSM-5 ;  METHANE ;  OXYGEN ;  SCR ;  PALLADIUM
语种: 英语
WOS记录号: WOS:000183359500009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138236
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Li, N,Wang, AQ,Tang, JW,et al. NO reduction by CH4 in the presence of excess O-2 over Co/sulfated zirconia catalysts[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2003,43(2):195-201.
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